Physical Sciences and Mathematics Commons^™

Groundwater Hydrogeolgy And Hydrochemistry Of Karst Springs In The Eastern Peninsula Of Fort Hood Military Installation, William Scribner Welles

Electronic Theses and Dissertations

The eastern peninsula of Fort Hood Military Installation is underlain by a complex karst spring network. These springs are a primary water source in a protected habitat for endangered songbirds, which has only recently begun to be fully investigated. These Fredericksburg Group springs express both epigenetic and hypogenetic karst signatures. The study area is part of a paleo reef trend, a hydraulically disconnected segment of the northern section of the Edwards Aquifer. This study utilized standard ion index values, repeated measures, and principal component analyses on the chemical profiles of six perennial springs to classify spring water sources and their …

Molecular Fossils From Phytoplankton Reveal Secular Pco2 Trend Over The Phanerozoic, Caitlyn R. Witkowski, Johan W. H. Weijers, Brian S. Blais, Stefan Schouten, Jaap S. Sinninghe Damsté

Science and Technology Department Faculty Journal Articles

Past changes in the atmospheric concentration of carbon dioxide (PCO2) have had a major impact on earth system dynamics; yet, reconstructing secular trends of past PCO2 remains a prevalent challenge in paleoclimate studies. The current long-term PCO2reconstructions rely largely on the compilation of many different proxies, often with discrepancies among proxies, particularly for periods older than 100 million years (Ma). Here, we reconstructed Phanerozoic PCO2 from a single proxy: the stable carbon isotopic fractionation associated with photosynthesis (Ɛp) that increases as PCO2 increases. This concept has been widely applied to alkenones, but here, we …

Decreasing Phosphatidylcholine On The Surface Of The Lipid Droplet Correlates With Altered Protein Binding And Steatosis, Laura Listenberger, Elizabeth Townsend, Cassandra Rickertsen, Anastasia Hains, Elizabeth Brown, Emily G. Inwards, Angela K. Stoeckman

Chemistry Faculty Publications

Alcoholic fatty liver disease (AFLD) is characterized by an abnormal accumulation of lipid droplets (LDs) in the liver. Here, we explore the composition of hepatic LDs in a rat model of AFLD. Five to seven weeks of alcohol consumption led to significant increases in hepatic triglyceride mass, along with increases in LD number and size. Additionally, hepatic LDs from rats with early alcoholic liver injury show a decreased ratio of surface phosphatidylcholine (PC) to phosphatidylethanolamine (PE). This occurred in parallel with an increase in the LD association of perilipin 2, a prominent LD protein. To determine if changes to the …

Bio-Inspired Polydopamine Surface Modification Of Nanodiamonds And Its Reduction Of Silver Nanoparticles, Yun Zeng, Wenyan Liu, Risheng Wang

Chemistry Faculty Research & Creative Works

Surface functionalization of nanodiamonds (NDs) is still challenging due to the diversity of functional groups on the ND surfaces. Here, we demonstrate a simple protocol for the multifunctional surface modification of NDs by using mussel-inspired polydopamine (PDA) coating. In addition, the functional layer of PDA on NDs could serve as a reducing agent to synthesize and stabilize metal nanoparticles. Dopamine (DA) can self-polymerize and spontaneously form PDA layers on ND surfaces if the NDs and dopamine are simply mixed together. The thickness of a PDA layer is controlled by varying the concentration of DA. A typical result shows that a …

Elemental Analysis Of Adhesive Tapes By Laser-Based Methods, Claudia Martinez Lopez

FIU Electronic Theses and Dissertations

Adhesive tapes are a common type of evidence involved in violent crimes and national security threats. This research evaluated the utility of LA-ICP-MS and LIBS for the characterization of the trace elemental signature in adhesive tapes for forensic comparisons. LA-ICP-MS and LIBS methods were developed, for the first time, for the qualitative and quantitative analysis of adhesive tapes.

The backings of 90 black electrical tapes, previously characterized by conventional techniques (physical examination, IR, Py-GC-MS, and SEM-EDS), were analyzed by LA-ICP-MS to evaluate the ability of the technique to discriminate samples originating from different sources and to associate pieces of tapes …

Novel Antibacterial Compounds And Methods Of Making And Using Same, Amit Basu, Christopher W. Reid, Mary Margaret O'Connor, Ethan Lindsay Magno, Mitchell Evan Jamieson, Ryan Daniel Miller

Science and Technology Department Faculty Journal Articles

No abstract provided.

College Of Science And Mathematics Newsletter, Fall 2018, College Of Science And Mathematics, Wright State University

College of Science and Mathematics Newsletters

This 3 page newsletter discusses various happenings within the College of Science and Mathematics. It begins with a letter from the dean, and continues on with news, events, alumni news, and other community news.

Air Pollution [Liberal Arts: Math And Science/Natural Science], Ian Alberts

Open Educational Resources

This assignment was designed for students in the pathways introductory chemistry class and the first year seminar and aligns with the Inquiry and Problem Solving core competency. In this context, there is a focus on “framing the issues” (identifies and/or addresses questions and problems), “evidence gathering” (assembles, reviews and synthesizes evidence from several diverse sources), “evidence” (analyze the data to address the questions posed) and “conclusions” (critical thinking, reflect on the outcomes, draw conclusions and generate new knowledge). There is also a Global Learning component based on comparing data collected locally with corresponding data from other locations or countries. The …

Chem 231-001 Physical Chemistry I, Lev Krasnoperov

Chemistry, Environmental and Forensic Science Syllabi

No abstract provided.

Chem 661-101: Instrumentation Analysis Lab, Somenath Mitra

Chemistry, Environmental and Forensic Science Syllabi

No abstract provided.

Chem 125 - General Chemistry I, Alisa Krishtal

Chemistry, Environmental and Forensic Science Syllabi

No abstract provided.

Chem 244 - Organic Chemistry Ii, Tamara Gund

Chemistry, Environmental and Forensic Science Syllabi

No abstract provided.

Chem 605-001: Advanced Organic Chemistry Structure And Mechanism, Tamara Gund

Chemistry, Environmental and Forensic Science Syllabi

No abstract provided.

Chem 244-003: Organic Chemistry Ii, Ngozi Onyia

Chemistry, Environmental and Forensic Science Syllabi

No abstract provided.

Chem 475-101: Biochemistry Lab I, Yong Kim

Chemistry, Environmental and Forensic Science Syllabi

No abstract provided.

Chem 125-H01: General Chemistry I (Honors), Bhavani Balasubramanian

Chemistry, Environmental and Forensic Science Syllabi

No abstract provided.

Chem 748-101: Nanomaterials, Zafar Iqbal

Chemistry, Environmental and Forensic Science Syllabi

No abstract provided.

Chem 360-001 Environmental Chemistry, Alexei Khalizov

Chemistry, Environmental and Forensic Science Syllabi

No abstract provided.

Chem 126a-101: General Chemistry Lab Ii, Chunyan Liu

Chemistry, Environmental and Forensic Science Syllabi

No abstract provided.

Eps 202-005: Society, Technology And Environment, Michael Bonchonsky

Chemistry, Environmental and Forensic Science Syllabi

No abstract provided.

Chem 243-101: Organic Chemistry I, A Castro

Chemistry, Environmental and Forensic Science Syllabi

No abstract provided.

Chem 473-001: Biochemistry, Edgardo Farinas

Chemistry, Environmental and Forensic Science Syllabi

No abstract provided.

Chem 222-100: Analytical Chemistry, Hao Chen

Chemistry, Environmental and Forensic Science Syllabi

No abstract provided.

Chem 243-003-Hm1: Organic Chemistry I, Yuanwei Zhang

Chemistry, Environmental and Forensic Science Syllabi

No abstract provided.

Chem 243-101: Organic Chemistry I, Ara Kahyaoglu

Chemistry, Environmental and Forensic Science Syllabi

No abstract provided.

Em 631-851: Legal Aspects Of Environmental Engineering, Michael Bonchonsky

Chemistry, Environmental and Forensic Science Syllabi

No abstract provided.

Chem 243-001: Organic Chemistry I, A Castro

Chemistry, Environmental and Forensic Science Syllabi

No abstract provided.

Chem 245-001: Organic Chemistry For Chemical Engineers, Ngozi Onyia

Chemistry, Environmental and Forensic Science Syllabi

No abstract provided.

Chem 244a-101: Organic Chemistry Ii Lab, Ngozi Onyia

Chemistry, Environmental and Forensic Science Syllabi

No abstract provided.

Eps 202-007: Society, Technology And Environment, Michael Bonchonsky

Chemistry, Environmental and Forensic Science Syllabi

No abstract provided.